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S-Factor Measurements for Gamma-Channel Fusion Reactions

ORAL

Abstract

Inertial confinement fusion facilities offer a unique opportunity to study reactions relevant to astrophysical phenomena in an environment that can produce applicable physical conditions such as temperature, pressure, and electron-screening effects. This work presents S-factor measurements for gamma-channel fusion reactions including D(T,5He)γ, H(D,3He)γ, and H(T,4He)γ as measured via warm implosions at the Omega Laser Facility. Target and laser pulse parameters were varied to achieve different ion temperatures (i.e., center-of-mass energies). Gamma rays were detected using various Cherenkov detectors. Implosions for each of these reactions also produce either DD or DT neutrons, which are considered to have well-known S factors. The S factors for the gamma-channel fusion reactions are determined using the neutron branch for either DD or DT fusion as a reference. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.

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Presenters

  • Zaarah L Mohamed

    Laboratory for Laser Energetics, U. of Rochester, University of Rochester, Laboratory for Laser Energetics, University of Rochester

Authors

  • Zaarah L Mohamed

    Laboratory for Laser Energetics, U. of Rochester, University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • James P Knauer

    Laboratory for Laser Energetics, U. of Rochester, University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • Andrew Sorce

    Laboratory for Laser Energetics, U. of Rochester, Laboratory for Laser Energetics

  • R. Bruce Brannon

    Laboratory for Laser Energetics, U. of Rochester

  • Roger T Janezic

    Laboratory for Laser Energetics, U. of Rochester, University of Rochester

  • Walter Shmayda

    Laboratory for Laser Energetics, U. of Rochester, Laboratory for Laser Energetics

  • Yongho Kim

    Los Alamos Natl Lab, Los Alamos National Lab, Los Alamos National Laboratory

  • Kevin D Meany

    Los Alamos National Laboratory, Los Alamos National Lab, Los Alamos Natl Lab

  • Hermann Geppert-Kleinrath

    Los Alamos National Laboratory

  • Michael S Rubery

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, Lawrence Livermaore National Laboratory, LLNL

  • Alex B Zylstra

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Justin Jeet

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Alex Leatherland

    Atomic Weapons Establishment